m_cheat.cpp - DOOM-3-BFG - DOOM 3 BFG Edition

m_cheat.cpp (3229B)
      1 /*
      2 ===========================================================================
      3 
      4 Doom 3 BFG Edition GPL Source Code
      5 Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 
      6 
      7 This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  
      8 
      9 Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
     10 it under the terms of the GNU General Public License as published by
     11 the Free Software Foundation, either version 3 of the License, or
     12 (at your option) any later version.
     13 
     14 Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
     15 but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 GNU General Public License for more details.
     18 
     19 You should have received a copy of the GNU General Public License
     20 along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.
     21 
     22 In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.
     23 
     24 If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
     25 
     26 ===========================================================================
     27 */
     28 
     29 #include "Precompiled.h"
     30 #include "globaldata.h"
     31 
     32 #include "m_cheat.h"
     33 
     34 //
     35 // CHEAT SEQUENCE PACKAGE
     36 //
     37 
     38 
     39 
     40 //
     41 // Called in st_stuff module, which handles the input.
     42 // Returns a 1 if the cheat was successful, 0 if failed.
     43 //
     44 int
     45 cht_CheckCheat
     46 ( cheatseq_t*	cht,
     47   char		key )
     48 {
     49 	return 0; // ALAN : Checking the cheats CRASHES??
     50     int i;
     51     int rc = 0;
     52 
     53     if (::g->firsttime)
     54     {
     55 	::g->firsttime = 0;
     56 	for (i=0;i<256;i++) ::g->cheat_xlate_table[i] = SCRAMBLE(i);
     57     }
     58 
     59     if (!cht->p)
     60     {
     61 	cht->p = ::g->cheatbuffer + ::g->usedcheatbuffer;
     62 	int isize = 0;
     63 	while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
     64 	cht->p[isize] = 0xff;
     65 	::g->usedcheatbuffer += isize;
     66 	::g->usedcheatbuffer ++;
     67     }
     68 
     69     if (*cht->p == 0)
     70 	*(cht->p++) = key;
     71     else if
     72 	(::g->cheat_xlate_table[(unsigned char)key] == *cht->p) cht->p++;
     73     else
     74     {
     75 	int isize = 0;
     76 	while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
     77 	cht->p[isize] = 0xff;
     78     }
     79 
     80     if (*cht->p == 1)
     81 	cht->p++;
     82     else if (*cht->p == 0xff) // end of sequence character
     83     {
     84 	int isize = 0;
     85 	while(cht->sequence[isize] != 0xff) cht->p[isize] = cht->sequence[isize];
     86 	cht->p[isize] = 0xff;	
     87 	rc = 1;
     88     }
     89 
     90     return rc;
     91 }
     92 
     93 void
     94 cht_GetParam
     95 ( cheatseq_t*	cht,
     96   char*		buffer )
     97 {
     98 
     99 
    100     unsigned char pb[16];
    101 	unsigned char *p;
    102     unsigned char c;
    103 
    104 	int isize = 0;
    105 
    106 	while(cht->sequence[isize] != 0xff) pb[isize] = cht->sequence[isize];
    107 	pb[isize] = 0xff;
    108 	p = &pb[0];
    109 
    110     while (*(p++) != 1);
    111     
    112     do
    113     {
    114 	c = *p;
    115 	*(buffer++) = c;
    116 	*(p++) = 0;
    117     }
    118     while (c && *p!=0xff );
    119 
    120     if (*p==0xff)
    121 	*buffer = 0;
    122 
    123 
    124 }
    125 
    126 
    127